8071996: split_if accesses NULL region of ConstraintCast

[rwestrel]

Applies cleanly. Tested with tier1.

A customer reported a crash that's likely this bug. The fix is low risk. I propose we backport it.

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Progress

• Change must not contain extraneous whitespace
• JDK-8071996 needs maintainer approval
• Commit message must refer to an issue

Issue

• JDK-8071996: split_if accesses NULL region of ConstraintCast (Bug - P4 - Approved)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev.git pull/649/head:pull/649
$ git checkout pull/649

Update a local copy of the PR:
$ git checkout pull/649
$ git pull https://git.openjdk.org/jdk8u-dev.git pull/649/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 649

View PR using the GUI difftool:
$ git pr show -t 649

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/649.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back roland! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@rwestrel This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8071996: split_if accesses NULL region of ConstraintCast

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

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[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @rwestrel This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (7e14f93e)

[rwestrel]

Test failures appear unrelated to this change.

[rwestrel]

/integrate

[openjdk]

Going to push as commit eca7a30.

[openjdk]

@rwestrel Pushed as commit eca7a30.

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